NEET BIOLOGY

Detailed explanation-1: -Height variation is known to be determined by both genetic and environmental factors, but a systematic description of how their influences differ by sex, age and global regions is lacking.

Detailed explanation-2: -For most individuals, though, height is controlled largely by a combination of genetic variants that each have more modest effects on height, plus a smaller contribution from environmental factors (such as nutrition). More than 700 such gene variants have been discovered and many more are expected to be identified.

Detailed explanation-3: -Your DNA accounts for around 80% of your height. In fact, scientists have identified over 700 unique genetic variants that are involved in determining height.

Detailed explanation-4: -Genetic variation-these are differences between individuals that are inherited from parents, such as the colour of your eyes, hair and skin. Environmental variation-these are differences between individuals that are not inherited but caused by the environment that the organism lives in, including scars and tattoos.